Hot Selling Effluent Portable Hand pumps

portable hand pump should be filled with lubricating oil on time. According to the regulations in the manual, add lubricating oil to the bearing of the water pump in time, and the amount of lubricating oil should not be too much or too little to prevent the bearing from being damaged prematurely. Do not block the overflow hole. Some Marine portable hand pump shafts have overflow holes, through which you can observe whether the water pump leaks. If the overflow hole is blocked, the water leaked...